Question

Which of the following statements about neurofibrillary tangles is correct?.

Answer 1

Answer Options:

• Having a large number of them is suggestive of Parkinson's.
• They are only found in the brains of people with Alzheimer's.
• They are only found in the brains of people with Parkinson's.
• Having a large number of them is suggestive of Alzheimer's.

Answer:

• They are only found in the brains of people with Alzheimer's.

Explanation:

Neurofibrillary tangles are abnormal accumulations of a protein called tau inside the neurons in the brain. They are a hallmark of Alzheimer's disease.

These tangles block the transport system, which harms the communication between neurons and disrupts the functioning of the brain.